Sewing machines



Aug. 2, 1960 Filed Dec. 19, 1955 H. HACKLANDER SEWING MACHINES TIMW 4Sheets-Sheet l INVENTOR .Hans Jlaaklander ATTORNEY 1960 H. HACKLANDER2,947,270

SEWING MACHINES Filed Dec. 19, 1955 4 Sheets-Sheet 2 Fig.3.

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sawmc MACHINES 4 Sheets-Sheet 3 Filed Dec. 19, 1955 x MW I INVENTOR HansJJaekZandQ- Aug. 2, 1960 Filed Dec. 19, 1955 H. HACKLANDER SEWINGMACHINES 4 Sheets-Sheet 4 INVENTOR Qlans Hacklander United States Paten2,947,270 SEWING MACHINES Hans Hacklander, Warren Township, N.J.,assignor to The Singer Manufacturing Company, Elizabeth, NJ., acorporation of New Jersey Filed Dec. 19, 1955, Ser. No. 553,806 8Claims. (Cl. 112--258) The present invention relates to sewing machinesand more particularly to sewing machines of the so-called hosiery seamertype in which the work is fed past the stitching mechanism by cup-typefeed wheels, such as the machine disclosed, for example, in applicantsprior Patent No. 2,518,987.

A primary object of this invention isto provide a hosiery seamer ofimproved design which is faster, subby way of cover-plates to theinternal mechanism.

Another object of this invention is to provide, in a hosiery seamer, anarrangement of'the belt pulley internally of the.frame, together with acover-plate therefor that conforms to the outer configuration of theframe,

and means for securing the cover-plate in position.

Another object of this invention is to provide an improved means forsecuring the top cover plate which, in accordance with the invention,has been combined with an oil-fill aperture for the frame.

Having in mind the above and other objects that will be evident from anunderstanding of this disclosure, the invention comprises the devices,combinations and arrangements of parts as illustrated in thepresentlypreferred embodiment of the invention which is hereinafter setforth in such detail as to enable those skilledin the art readily tounderstand the function, operation, construction and advantages of itwhen read in conjunction with the accompanying drawings in which: Fig. 1is a front elevational view, partly in section,

of a sewing machine embodying the present invention.

Fig. 2 is a vertical sectional view substantially through the center ofthe machine illustrated in Fig. 1. p

I Fig. 3 is a fragmentary plan view of the machine illustrated in Fig.1,-but with the top cover-plate and handwheel removed.

Figs. 4 and 5 arehorizontal sectional views taken substantially on thelines 4 -4 and 55 of Fig. 2, respectively.

Fig. 6 is a fragmentary vertical sectional view taken substantially onthe line 6-6 of Fig. 5.

Fig. 7 is a fragmentary vertical sectional view taken substantially onthe line 7-7 of Fig. 3.

Fig. 8 is a fragmentary horizontal sectional view taken substantially onthe line 8-8 of Fig.2.

Fig. 9 is a fragmentary detail view of one of the clips for securing inposition the cover-plate for the belt compartment. 1

Fig. 10 is a detail plan viewcf the counterweight.

I The present invention is embodied in a sewing machine tric ashereinafter explained. The

cured by rigid fastening means. with a rigid fastening means, the

.of its seat and,

ice

generally similar to that 2,518,987. Accordingly, the present disclosureis limited to only that part of the machine that is believed to benecessary to form a complete understanding of the invention, referencebeing made to my prior patent for a more detailed disclosure of thevarious mechanisms and the function and operation thereof. .T

The machine illustrated in the drawings comprises a frame 1 having avertically disposed hollow standard 2 carrying a laterally extendingbracket-arm 3. The hollow interiorof the standard 2 comprises anoil-tight splash-lubrication compartment 4 which is closed atrthe top bya horizontal partition 5 in the frame and closed at the bottom by a baseplate 6 secured to the standard by screws 7. The partition 5 serves toseparate the compartment 4 from a compartment 8 which includes thehollow interior of the bracket-arm 3. 7 As best .seen'in Figs. 4 and 5,the standard 2 is quadrangular in horizontal cross-section havingsubstantially flat sides including two short sides 9 and 10 and two longsides 11 and 12. The bracket-arm 3 is arranged to project laterally fromthe upper end of the standard 2 from the angle at the intersection ofthe long sides 11 and 12, outwardly across the angle at the intersectionof the short sides 9 and 10. The long sides 11 and 12 are apertured toprovide convenient access to the mechanism internally of the standard 2,which apertures are closed by plates 13 and 14. A threaded plug 15 (Fig.5) is provided in the plate 14 to provide more convenient access to theinterior of the frame for adjustment of the feed eccenpresent frameconstruction and arrangement of apertures is of particular advantage inproviding access to the mechanism in the interior of the frame as isalso hereinafter explained.

A top cover-plate 18 is provided for closing the upper portion of thebelt compartment 8 of the bracket-arm 3, which, cover-plate is securedby a resilient connection comprising a spring 19 seated in a circularrecess 20 formed in a depending boss in the cover-plate. spring 19 bearsat its lower end against a spring seat which consists'of the-bottom ofthe recess 20, and at its upper end against the under side of the headof a screw 21. The screw 21 is threaded into a hollow stud 22 thatextends loosely through an aperture in the bottom of the recess 20 andis threaded through a tapped opening in the partition 5 intothelubrication compartment 4. The stud is locked by the nut 23. The stud 22constitutes a filling aperture for introducing lubricant into thelubrication compartment 4. The lubricant can be drained from thelubrication compartment 4 by means of a drainplug 16, while the level ofthe lubricant in the compartment can be determined by a sight-gauge 17.-As heretofore constructed, cover-plates have been se- As will beapparent, mating surfaces where the cover-plate seats on the bracketmust be accurate to avoid breaking the cover-plate as it is drawn upagainst its seat. On the other hand, if the cover-plate fastening meansis not drawn tight, thecover-plate will vibrate and thus is noisy. Thepresent resilient fastening means avoids both of these objections, i.e.,if there are inaccuracies in the seating surfaces of the cover-plate 18upon the bracket-arm 3, the cover-plate cannot be broken by drawing itup tightly to conform to the configuration at the same time, theresiliency of the fastening means will hold the cover-plate 18 securelyso that it will not vibrate relatively to the bracket-arm 3. A mainshaft '24 is arranged with its axis vertical in the lubricationcompartment 4 of the standard 2 adjacent the junction of the long sides11 and 12 and symmetrically with relation thereto. The shaft 24 (Fig. 2)is journaled for rotation in an upper bushing disclosed in my priorPatent No. I

25 and a lower bushing 26. The upper bushing 25 is secured in anaperture in the partition 5 by the screws 27 and the lower bush ng 26 iscarried by a lug 28 extending into the lubrication compartment-4 fromthe angle at the juncture of the long ides 11- and 12 of the standard 2.At its upper and, the ,shaft 24cxtends through the upper bushing 25 tothe exterior of the frame where it receives .a hand-wheel 29 securedthereon by screws 30, the cover-plate'18be1ng provided with a clearanceaperture 31 to accommodate the hand-wheel 29. Theshaft24 is held againstvertical movement by a collar 32 and the hub of a gear 33 which .aresecured thereto by screws 34 and 35 and which engage the upper and lowerends respectively of the lower bushing The main shaft;24 is driven bythe bevel gear 33 wh meshes with a similar gear 36 on a drive-shaft 37arranged horizontally in the lubrication compartment 4 substantiallyparallel to the side '12 of the frame and journaled for rotation inbushings 38 and 39. The bushing 38 is secured in an aperturedjlug 40 inthe side 11 of the standard 2 and the bushing 39 is secured by screws 41to a partition 42. The partition 42, together with end partition 43 andtop partition 44, define a belt-pulley compartment 45 within theconfines of the frame, which compartment 45 is sealed from thelubrication compartment 4. Within the compartment 45, the shaft 37 hassecured thereto .a belt-pulley 46 about whieh is entrained a drivingbelt 47 by means of which power is delivered to the machine. Anelongated aperture 43 is provided in the plate 6 through which the beltruns. The cornpartment 45 is closed by a curved plate 49 which followsthe contours of the sides and '12 of the standard ,2 to form a smoothsurface therewith. The plate .49 is held in the desired position by fourspring metal clips 50 (see Fig. 9 each of which comprises a sheet metalpiece "51 having a rounded end 52 and secured to the inside of the plate49 by a screw 53 extending through a slot 54 in the piece 51. The pieces51 are secured to the plate 49 with the rounded ends 52 extending beyondthe outline thereof, the slots 54 providing for this adjustment. Whenthe plate 49 is placed in position, the ends 52 of the clips will bedeflected and then will spring into a position behind the adjacent edgesof the sides 10 and 12 and plate 6 to hold the plate 49 in position. Toremove the plate 49 it is only necessary to pull the same, whichisfacilitated by the thumbnail slot 54 (Fig. 5). A sheet metal memberformed with angle brackets 55 (Figs. 5 and 6) is located along the edgeof the end partition 43 to serve as a stop against which the'plate 49 ispositioned.

The stitching mechanism of the machine includes an endwisereciprocating, horizontally arranged, needle-bar 56 journaled in abushing 57 in a flat front wall 58 of the standard, which wall extendsbetween the sides 9 and 10 at the upper portion of the standard. Thefront wall 58, which is normal to the bracket-arm 3, is designed toprovide clearance space for the stitch forming and feeding mechanisms.At its outer end the needle-bar 56 carries a needle 59 secured theretoby a needle-clamp 60. Longitudinal reciprocation is imparted to theneedle-bar 56 by a pitman 61 connected at one end to a cross pin 62 atthe inner end of the needle-bar. The pitman 61 is ,conheated at itsother end to a crank 63 on the main shaft 24.

A thread-carrying looper 64 is secured by a screw 64a to a clamp .65,the screw 64a extending through a slot in the shank of the looper toprovide for adjustment of the looper. The clamp ,65 has a hub 66 that ismounted upon the end of a looper shaft 67 journaled for oscillation in abushing 69 extending through a bearing lug 70 in the wall 58 of theframe. The looper shaft 67 is arranged in a horizontal plane with theaxis thereof at an acute angle to the axis of the needle-bar 56 as shownin Fig. .4. The looper shaft 67 is held against endwise sliding in thebushing 69 by a collar 71 (Fig. 4) which abuts against the outer end ofthe bushing, and the hub of a crank-arm 72 on the shaft 67, which hubabuts against the inner end of the bushing. The crank-arm 72 carries 4 aball-end crank pin 73 that is connected to one end of a pitman 74 thathas a strap portion at the other end which embraces an eccentric 75 onthe main shaft 24.

Means are provided for facilitating adjustment of looper 64 axially andcircularly of the looper shaft 67. Toward this end, there is provided asleeve or collar 76 on the outer end of the looper shaft 67, whichcollar is releasably secured to the shaft by a set screw 77. .Anescutcheon 78 surrounds the bushing 69 and that portion of the shaft .67adjacent the collar 71 as Well as the inner end of the collar 76. Theescutcheon 78 is secured to the bushing 69 by a set screw 79. To adjustthe looper 64 axially of the shaft 67, it is necessary only to releaseeither the hub 66 of the looper clamp or the collar 76 from the shaft,depending upon the direction in which the looper must be adjusted, andslide the released element into the desired position using the other ofthe two elements as a reference. For example, if it were determined thatthe looper 64 had to be moved inwardly axially of the shaft 67 byfive-thousandths of an inch, thesetscrew 77 is backed off to release thecollar 76 which is then moved the required distance from the end of thehub 66. The hub 66 is still secured to the shaft and serves as astationary reference point from which the required distance canbemeasure, as by a feeler gauge. When properly positioned, the collar '76is secured to the shaft 67 and the hub 66 is released from the shaft,moved up against the collar 76 and secured in this position. Also, if itis desired to turn the looper circularly about the shaft 67, it is onlynecessary to loosen the clamp 65 and turn the looper and clamp therequired amount, the collar 76 functioning to retain the looper in itsproper position lengthwise of the shaft 67. Of course, when the looperclamp 65 is removed, the collar will remain to indicate the propersetting therefor when it is replaced. This looper adjustment means formsthe subject matter of divisional application Serial No. 648,528, filedMarch 26, 1957, now Patent No. 2,884,884, dated May S, 1959.

Cooperating with the needle 59 and looper 164 in the formation ofthree-thread overedge chain stitches is a second threaded looper 80 thatis secured by a screw 81 to a clamp 82. The screw 81 also extendsthrough a slot in the shank of the looper 80 to provide for adjustmentof the looper. The clamp 82 is secured to the free end of a looper shaft83 that is journaled for oscillation in a bushing 84 extending through abearing lug 85 in the wall 58 of the machine frame. The shaft 83, likethe shaft 67, is arranged preferably in the same horizontal plane as thelooper shaft 67 and with the axis thereof at an acute angle to the axisof the needle-bar 56, the shaft 83 being arranged upon the opposite sideof the needle-bar 56 from the shaft 67 and at nearly a right angle tothe shaft .67. The looper shaft 83 is held against endwise sliding inthe bushing 84by a collar 86 which abuts against the outer end of thebushing and the hub of a crank-arm 87 which abuts against the inner endof the bushing. The crank-arm 87, which is secured to the shaft 83,carries a ball-end crank pin 88 that is connected to one end of a pitman89 having a strap portion at the other end thereof which embraces aneccentric 90 on the main shaft 24.

In the same manner as for the looper 64, means are provided foradjustment of the looper 3i) axially and circularly of the shaft 83,which means comprises a collar 91 fixed to the end of the shaft 83 by aset screw 92. The clamp 82 and collar 91 may be individually releasedfrom the shaft 83 and adjusted axially thereof using the other as amarker from which to gauge the adjustment. 7

Mounted upon the bracket 3 is a plate 94 (Figs. 1 and 3) that carries atension device 95 having three pairs of tension disks 96 and a threadpropoitioning means 97 for measuring the amount of each of the threadsin the stitch structure. The plate 94 has formed integral therewithapertured thread-guid ng arms 98 and 99, the arm 98 being located todirect the threads from a supply to the tension device95 and the arm 99being located to receive the thread from theproportioning means 97. Fromthe arm 99, the first thread, or the one nearest the bracket 3, isguided by thread guiding arms th and 101 to the needle 59. The arm 104)is located to direct the needle thread toward the eye of the needle froma point above and at the same side of the needle-bar 56 as the loopershaft 83, and to the rear of the needle. The second or middle thread isguided by the thread guiding arm 100 to the looper 80 and the third orouter thread is-guided by the arm 100 to the looper 64. The arm 10%) isarranged to direct the looper threads toward the loopers from pointsabove at the same side of the needlebar 56 as the looper shaft67, andsubstantially in a vertical plane including the line of feed of themachine.

In the operation of the stitching mechanism, the needle 59'is advancedto penetrate the work, and as it is withdrawn, it casts a loop of needlethread in the usual manner. The looper 64 is oscillated to enter thisloop of needle thread, carrying'its own thread therethrough. At the endof the stroke of the looper 64, the looper 80 is oscillated to enter aloop in the thread of looper 64,'carrying its own thread therethrough.The looper 80 then proceeds to present its loop to the needle to beentered thereby upon its next work-penetrating stroke. The motions ofthe stitching elements are very simple in that each has only a singleaction, i.e., the needle 59 is reciprocatedand the loopers 64 and 80 areoscillated. At the 'same time,the paths of the stitchingelement'sbetween the various points of loop seizure, coupled with thevery favorable threadl'eads, eliminate the need for separate take-upelements since each of the stitching'elements has been made to takeup-its own thread as it is retracted; thus setting its own thread in thestitch. While in the above described stitching mechanism both of theloopers 64. and80 are fitted with its own thread ,and' the machine formsa three-thread seam, it will be obvious that the present machine may befitted, to sew .a two-thread or a single-thread seam. When the looper.80 is removed anda spreader is substituted, the machine is adapted toform a two-thread chain stitch in the usual .manner, and when both theloopers 64 and 80 are removed and spreaders substituted therefor, themachine is adapted to forma single thread chain stitch. 1 Q As seen inFig. '8, in the'usual manner a stitch finger 102 is supported from infront'of the point of stitch formation, and'a roller presser 103 of thetype disclosed in 'my prior Patent No. 2,398,225 is'arranged'to the rearof the point of stitch formatio e l l The feeding mechanism of thepresent machine comprises apair ofopposed feed cups including an' outerfeed cup 104 and an inner feed cup 105. 'The inner feed cup 105ismounted' upon the upper end of a vertical faxisfeed shaft 106journaled in bushings in'the standard .2 at the intersection of theshort sides 9' and 10. 'At 'its lower end, the feed shaft 106hasrnoun'tedthereo'n 'a gear 107, the standard 2 being provided with anextension 108 for enclosing the same. The gear 107 meshes with a similargear 109 on the lower end of avertical axis feed-actuating shaft 110journaled at its lower end in a bushing 111 in a bearing lug 112 whichextends inwardly from the side of the standard, and at its upper end ina bushing 113 in the partition 5. Intermittent one-way rotation isimparted to the feed-actuating shaft 110, by means of a conventionalone-way clutch 114 .havingan arm 115 connected by a pitman 116 to anadjustable eccentric 117 on the drive shaft 37. In comparison with theconstruction of my prior devices, placing the feed-eccentric 117 on thedrive'shaft 37 not only provides a neater and more convenientarrangement from the standpoint of access for adjustment, repair andreplacement, but alsogives a better balanced design and removes theintermittent load of the feed from the gear connection between theshafts 24 and 37. This construction of the feed drive means forms thesubject matter actuating shaft projects into the compartment 8 whichconsists of the hollow interior of the bracketarm 3. Mounted upon theend of the feed-actuating shaft 110 within the compartment 8 is a pulley118 which is connected by a belt 119 to a similar pulley 120 mountedupon the upper end of the feed shaft 121 whereby actuations of thefeed-actuating shaft 110 will be transmitted to the feed shaft 121. Tomaintain the proper tension in the belt there is provided a belttightener comprising a bracket 122 adjustably secured to the side wallof the bracket-arm 3 by a bolt 123 extending through an aperture in theside wall of the bracket-arm and through a slot 124 in the bracket 122,and tightened by a nut 125. The bracket 122 is arranged in thehorizontal plane of thebelt 119 and includes a pair of laterallyextending arms 126 between which is journaled a belt-engaging roller127. 'The roller 127 is adapted to engage the adjacent run of the belt119 and to deflect the same, thereby increasing the length of that runof the belt and elfecting a belt tightening action. The shafts 110 and121 and the pulleys 118 and 120 are arranged so that the engaged runofthe belt 119 is at an acute angle, to the side wall of the bracket-arm3, Thus, as the bracket 122 is adjusted toward the pulley 118, theroller 127 will increasingly deflect the belt 119 and lengthen that runof the belt. Conversely, as the roller 127 is moved toward the pulley120, the deflection of the belt will be decreased and the tension pf'thebelt will accordingly be decreased. This belt tightener is disclosed andclaimed in divisional application Serial No. 648,529, filed March 26,1957, now Patent No. 2,896,560, dated July 28,1959. A

To provide for introducing work between the feed cups, the outer feedcup 104 may be moved away from operative position in relation to theinner feed cup 105. Toward this end, the feed shaft 121 is journaled inbearings in a sleeve 128 that at its upper end extends into the splitdepending portion 129 (Figs. 1 and 7) of a feed cup supportinggate 130and is clamped therein by a screw 131'.

The gate 130 is pivotally mounted in the bracket-arm 3 by between acontact piece 138 that engages the'under side of the lever 134 and anadjustable disc 139 arranged in the bore 136. The disc 139 has externalthreads that cooperate with internal threads in the bore 136 wherebyvertical adjustment of the disc 139 in the bore136 will be effected whenthe disc 139 is rotated. To rotate the disc 139 there is provided a rod140 that is preferably square in cross section and extends through anaperture of similar configuration in the disc. The rod 140 extends upwardly through the spring and through an aperture 141 in the lever 134.At its upper end, the rod is provided with a readily accessible screwdriver slot 142 by means of which the rod 140 may be rotated.

At its free end, the lever 134 is connected to a pull rod 14-3 whichprovides for pivoting the lever 134 against the action of the spring 135andthus separating the feed cups 104 and 105. The connection between thelever 134-and pull rod 143 comprises a head 144 upon the end of the pullrod 143 that operatively engages the lever 134 as the pull rod istensioned, the pull rod 143 extending downwardly through an aperture inthe lever 134. To prevent rattling between the pull rod andlever, aspring 145 is disp'osedbetwe'en the head 144 and the top of the lever134, and a spacer 146 is provided to minimize the lost motion. The pullrod extends downwardly through the lubrication compartment 4 and isseparated therefrom by a sleeve 147 surrounding the same. The sleeve147, at its upper end, extends through the partition 5 and has an oiltight connection therewith, and at its lower end, is press fitted into abore in a plug 148 having a flange 149. The plug 148 is seated in anaperture in the bottom plate 6 and secured therein by screws 150. Theplug 148 is provided with an aperture 151 through which passes the lowerend of the pull rod 143. The pull rod 143 is adapted to be connected toa foot treadle (not shown) by a chain 152. Depression of the free end ofthe lever 134 to separate the feed cups 104 and 105 is limited by anadjustable stop bolt 153 screwed through the lever 134 in position tocontact the partition 5 and locked by a nut 154.

The advantages of this construction include easier assembly and a planarbase without depending structure whereby the machine may be placed upona supporting surface without the provision of special cut-outs. Thelatter advantage is significant in that the machine may be more readilyhandled than prior machines, and more conveniently stored and shipped.From an assembly standpoint, the sleeve 147 is fitted into the plug 148,and thereafter inserted into the machine. The rod 143 is inserted fromthe top after the other parts, including the spring 135, the gate 139and lever 134 have been assembled. Thus, the assembly of the machine hasbeen greatly simplified. This adjustable feed cup biasing means isdisclosed and claimed in divisional application Serial No. 648,529,filed March 26, 1957.

In balancing the present machine, there has been provided acounterweight (Figs. 2 and designated generally at 155 that is securedto the main shaft 24. The counterweight 155 comprises a hub 156 havingan aperture through which the main shaft 24 passes, an arm 157 extendingoutwardly from the hub, and a Weight 158 upon the end of the arm. Thecounterweight 155 is divided longitudinally into two substantially equalcomplemental parts, each including a portion of the hub, arm and weight.The two parts are secured together by screws 159. The counterweight isdivided longitudinally in a manner such that the adjacent faces of thetwo parts contact at the extreme end of the weight and diverge slightlytoward the hub. Thus, the depth of the portion of the aperture in eachpart is less than half the diameter of the main shaft, whereby, when thescrews 159 are drawn up, the two parts initially contact along a line atthe end of the weight 158, designated in Fig. 10 at 160, and then pivotabout this line as the hub is drawn up against the main shaft 24 andthus clamped. The counterweight may be readily mounted or adjusted on orremoved from the shaft simply by backing off the screws 159,thusseparating the two parts. This counterweight is disclosed andclaimed in divisional application Serial No. 648,578, filed March 26,1957.

The lubrication system of the disclosed machine is of known constructionexcept for the oil sling that dispenses the lubricant and thus splashlubricates the mechanism within the compartment 4. The oil sling,designated generally at 161, comprises a central supporting section orcircular disc 162, that is secured to the drive shaft 37 by screws 163threaded into the hub of the gear 36. The periphery of the disc 162 isturned inwardly or, more specifically, it is formed to extend initiallyout of the plane of the disc to form a bottom 164 and terminates in aflange-like portion 165 parallel to the disc 162 and extending inwardlytoward the axis of rotation of the disc to form a circular trough 166open inwardly toward the center of rotation. The bottom 164 is providedwith apertures 167 The oil sling is dimensioned with relation to theheight of the drive shaft 37 upon which it is mounted and the designedlevel of the lubricant in the lubricant compartment 4, so that thetrough 166 will have the lower portion thereof below the level of thelubricant'in the reservoir. Thus, when the machine is idle, the immersedportion of the trough will be filled with lubricant. When the machine isoperated, this lubricant will be thrown by centrifugal force outwardlyin substantially metered quantity through the apertures 167. This oilsling forms the subject matter of divisional application Serial No.648,579, filed March 26, 1957.

Numerous alterations of the structure herein disclosed will suggestthemselves to those skilled in the art. However, it is to be understoodthat the present disclosure reiates to a preferred embodiment of myinvention which is for purposes of illustration only and not to beconstrued as a limitation of the invention. All such modifications whichdo not depart from the spirit of the invention are intended to beincluded within the scope of the appended claims.

Having thus described the nature of the invention, what I claim hereinis: v

1. In a sewing machine of the hosiery seamer type, a frame including astandard having four sides comprising two pairs of adjacentsubstantially identical sides, a bracket-arm carried by said standardand extending from adjacent the intersection of a first pair of saidpairs of sides outwardly, across the intersection of the second pair ofsaid pairs of sides, a main shaft journaled for rotation in said framelongitudinally of said standard, a drive shaft journaled for rotation insaid frame and operatively connected to said main shaft for impartingrotation thereto, stitching and feeding mechanisms carried by saidframe, operative connections for actuating said stitching and feedingmechanisms from said main shaft and drive shaft, said first pair ofsides having apertures therein for providing access to the interior ofsaid frame, said apertures extending opposite the portions of said mainshaft and drive shaft including said operative connections, and coverplates for closing said apertures.

2. In a sewing machine of the hosiery seamer type, a frame including avertically arranged standard having four planar sides comprising a pairof adjacent substantially identical long sides and a pair of adjacentsubstantially identical short sides, a bracket-arm surmounting saidstandard and extending from adjacent the intersection of said long sidesoutwardly across the intersection of said short sides, stitchingmechanism and feeding mechanism carried by said frame, drive meanscomprising a vertical axis main shaft journaled for rotation in saidframe adjacent to the intersection of said long sides and a horizontalaxis drive shaft journaled for rotation in said frame and operativelyconnected to said main shaft for imparting rotation thereto, operativeconnectrons between said drive means and said stitching and feedingmechanisms for actuating said mechanisms upon actuation of said drivemeans, said long sides having apertures therein for providing access tothe interior of said frame, said apertures extending opposite theportlons of said main shaft and drive shaft including said operativeconnections, and cover plates for closing said apertures.

3. In a sewing machine of the hosiery seamer type, a frame including avertically arranged hollow standard having four planar sides comprisingtwo pairs of adjacent substantially identical sides, a removable platefor closing the bottom of said standard and a partition for closing thetop of said standard for forming a closed lubrication compartment insaid standard, a bracket-arm surmounting said standard and extendingfrom adjacent the intersection of a first pair of said pairs of sidesoutwardly across the intersection of the second pair of said pairs ofsides, said partition closing said bracket-arm from said lubricationcompartment, stitching and feeding mechanisms carried by said frame andextending into said lubrication compartment, drive means for saidstitching and feeding mechanisms comprising a vertical axis main shaftjournaled for rotation in said frame adjacent to the intersection ofsaid first pair of sides and a horizontal axis ENVY 6811011 compartmentbetween said drive means and said stitching and feeding mechanisms, saidfirst pair of sides having apertures therein for providing access to theinterior of said lubrication compartment, and cover plates for closingsaid apertures.

4. In a sewing machine of the hosiery seamer type, a frame including ahollow standard having four planar sides comprising two pairs ofadjacent substantially identical sides, a plate for closing the bottomof said standard and a partition for closing the top of said standardfor forming a closed lubrication compartment within said standard, amain shaft journaled for rotation in said standard longitudinallythereof, a drive shaft journaled for rotation in said standard andoperatively connected to said main shaft for imparting rotation thereto,a beltpulley compartment formed within the confines of said standardadjacent the intersection of one of the sides of a first one of saidpairs of sides and the adjacent one of the sides of the second pair ofsides, said sides being cut away about said belt-pulley compartment toexpose the same, partitions separating said belt-pulley compartment fromsaid lubrication compartment, said drive shaft extending through saidbelt-pulley compartment partitions into said belt-pulley compartment, abelt pulley mounted upon said drive shaft within said belt-pulleycompartment, a cover plate conforming to the cut-away portion of saidsides for closing said belt-pulley compartment and forming smoothcontinuations of said sides, and releasable means for holding said coverplate in position. 5. In a sewing machine of the hosiery seamer type, a

frame including a; vertically arranged hollow standard having fourplanar sides comprising two pairs of adjacent substantially identicalsides, a plate for closing the bottom of ,said standard and a partitionfor closing the top of said standard for forming a closed lubricationcompartment within said standard, a vertical axis main shaft journaledfor rotation in said standard adjacent to the intersection of the sidesof a first one of said pairs of sides, a horizontal axis drive shaftjournaled for rotation in said standard substantially parallel to one ofthe sides of said first pair of sides and operatively connected to saidmain shaft for imparting rotation thereto, a beltpulley compartmentformed within the confines of said standard adjacent the intersection ofsaid one of said first pair of sides and the adjacent one of the sidesof the second pair of sides, said sides being cut away about saidbelt-pulley compartment to expose the same, partitions separating saidbelt-pulley compartment from said lubrication compartment, said driveshaft extending through said belt-pulley compartment partitions intosaid beltpulley compartment, a belt pulley mounted upon said drive shaftwithin said belt-pulley compartment, a cover plate conforming to thecut-away portion of said sides for closing said belt-pulley compartmentand forming smooth continuations of said sides, seating means forlimiting said cover plate to the position in which the outer surfacethereof is flush with the adjacent outer surfaces of said sides, andspring clips carried by said cover plate and adapted to engage, behindthe edge of said sides about said cut away, said spring clips beingdeflected as said cover plate is inserted into or removed from position.

6. In a sewing machine, a frame including a hollow standard having sidewalls, a closed lubrication compartment within said standard, sewingmechanisms carried by said standard and including actuating elementswithin said lubrication compartment, a drive shaft journaled in saidstandard in said lubrication compartment, operative connections betweensaid actuating elements and said drive shaft within said lubricationcompartment, a belt-pulley compartment formed within said standard,partitions separating said belt-pulley compartment from saidlubrication'compartment, said drive shaft extending intorsaidbelt-pulley compartment, a belt pulley mounted upon said drive shaft withinsaid belt-pulley compartment, the side, walls of said standard adjacentto said belt-pulley compartment being cut away to expose saidbelt-pulley compartment, a cover plate conforming to, thecut-awayportions of said walls to close said beltpulley compartment, seatingmeans for limiting said cover plate to the position in which the outersurface thereof is flush with the adjacent outer surfaces of said sides,leaf spring clips, adjustable means for securing said clips to the innersurface of said cover plate with the free ends thereof extending beyondthe edge of said cover plate whereby said clips will engage behind theedge of said sides about said cut-away to hold said cover plate inposition and the free ends of said clips will be deflected as said coverplate is inserted into and removed from position, the free ends of saidclips being formed into a cam-like surface to facilitate deflection ofthe free ends of said clips.

7. In a sewing machine having a frame including a standard with a closedlubrication compartment internally thereof, a bracket arm extendinglaterally from the upper portion of said standard, the upper portion ofsaid bracket arm having an opening, a cover plate for closing saidopening, and a partition disposed between said standard and bracket armand closing the upper portion of said lubrication compartment, combinedmeans for resiliently securing said cover plate to said bracket arm andfor providing a filling aperture for said lubrication compartment, saidmeans comprising a hollow stud extending through an aperture in saidpartition and secured to said partition, said cover plate having anaperture 'therethrough axially aligned with the aperture in saidpartition, a spring seat formed in the cover plate about I said aperturetherein, said hollow stud provided with threads, a threaded elementscrewed to said hollow stud,

a laterally extending shoulder on said threaded element, and a resilientcompression element disposed between said shoulder and said spring seat.

8. In a sewing machine having a frame including a standard with a closedlubrication compartment internally thereof, a bracket arm extendinglaterally from the upper portion of said standard, the upper portion ofsaid bracket arm having an opening, a cover plate for closing saidopening, and a partition disposed between the standard and bracket armand closing the upper portion of said lubrication compartment, combinedmeans for resiliently securing said cover plate to said bracket arm andfor providing a filling aperture for said lubrication compartment, saidstud having external threads at one end and internal threads at theother end, said partition having a threaded aperture through which theexternally threaded end of said hollow stud is screwed, said cover platehaving'an aperture axially aligned with the aperture in said partitionand through which said hollow stud extends, a threaded element screwedinto the internally threaded end of said hollow stud, said threadedelement having a head defining a laterally extending shoulder that isadaptedto be seated againstthe end of said stud, a spring seat formed onsaid cover plate aboutsaid stud, and a resilient compression elementdisposed between said spring seat and the head of said threaded element.

(Other references on following page) means comprising a hollow 11 UNITEDSTATES PATENTS FOREIGN PATENTS Great Britainof '1894 Germany Oct. 9,1933 Switzerland Nov. 1, 1952 France July 8, 1953 Great Britain July 6,1955

